package com.example.sale.Service;

import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.IService;
import com.example.sale.True.Feedback;
import com.example.sale.True.Payment;

import java.util.Map;

public interface IPaymentService extends IService<Payment> {
     Integer SumPayment();
     Integer MaxPayment();
     Integer MinPayment();;
     Integer AvgPayment();
}
